Types of axons, Biology

Assignment Help:

Types of Axons

Axons are of two types

  1. Myelinated and
  2. Non-myelinated

In the case of myelinated axons the neurilemma is ensheathed by another covering, the myelin sheath, composed of complex lipoproteins. The terminal branches, dendrites, cell body (perikaryon) and the initial region of the axon (the axon hillock) are devoid of myelin sheath: Although the dendrites are relatively short, unsheathed, tapering, irregular in diameter, and branched in a wide array of patterns, the cell body cytoplasm extends into them. The dendrites receive synaptic endings over much of their surface and thus constitute the receptive surface of the neuron. They are like receiving antennae as a nerve cell receives messages along the dendrites but sends messages along the axon.


Related Discussions:- Types of axons

Explain about the epilepsy, Explain about the Epilepsy? Epilepsy is a n...

Explain about the Epilepsy? Epilepsy is a neuromuscular disorder in which transient seizures recur due to an abnormal brain activity. The brain, through all orderly electric ex

Plants, why roots grow downword

why roots grow downword

Define root canal perforations - time of treatment, Define Types of Root Ca...

Define Types of Root Canal Perforations According to the time of treatment According to the time of treatment in relation to occurrence: Fresh perforation: treated immed

Define the uses of foams, Define the uses of foams The foams frequently...

Define the uses of foams The foams frequently used in cookery are whipped cream, ice cream, cake, bread, meringues, milk froth and gelatin.  Food foams contain large amounts of

How hermaphrodite species present cross-fecundation, Is it possible for a h...

Is it possible for a hermaphrodite species to present cross-fecundation? There are hermaphrodite species of animals and plants that present cross-fecundation mainly because of

What is the relationship between these cells and hiv, Q. What are CD4 lymph...

Q. What are CD4 lymphocytes? What is the relationship between these cells and HIV? How does HIV replicate? The CD4 lymphocytes are T helper lymphocytes that present in their pl

Vitamins, Vitamins Animals cannot sustain a healthy life if they are ...

Vitamins Animals cannot sustain a healthy life if they are fed on a diet having only carbohydrates, fats and proteins. They also require vitamins in small quantities in the r

Briefly explain about the sit-ups test, Briefly explain about the Sit-ups T...

Briefly explain about the Sit-ups Test? To measure muscular endurance, bent knee sit-ups can be done. Sit-ups begin with the subject lying flat on their backs with their knees

Explain evolutionary classification, Evolutionary Classification Evolut...

Evolutionary Classification Evolutionary classification combines aspects of both phenetic and cladistic systematic. Evolutionary taxonomists attempt to show in their classifica

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd